Machine for kneading and washing margarin or other similar substances.



No. 701,473. Patented June 3, I902.

L. B. DONKERS.

MACHINE FOR KNEADING AND WASHING MABGARIN OR OTHER SIMILAR SUBSTANCES.

(Application filed Sept. 4, 1901.)

(No Model.) 2 Sheets-Sheet I.

Inx/EETBT,

THE "cams warms co. FNOTO-LITHQ. wAskmuTn. D. c.

No. 70|,473. Patented June 3, 19021.

L. B. DONKERS.

MACHINE FOR KNEADING AND WASHING MARGARIN 0R OTHEB'SIMILAR SUBSTANCES.

(Application filed Sept. 4, 1901.)

(No Model.) 2 Sheets-Sheet 2.

1111mm 4W m W UNITED STATES,

PATENT. I OFFICE.

LOUIS BAPTISTE DONKERS, OF ANTWERP, BELGIUM.

MACHINE FOR KNEADING AND WASHING NIARGARIN OR OTHER SIMILAR SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 701,473, dated June 3,I902.

Application filed Septembtr i, 1901. Serial No. 74,263i (N0 model.) i

To all whom it may colt-007%:

Be it known that I, LOUIS BAPTIsrE DONK- ERS, a subject of the King ofBelgium, residing at Antwerp, Belgium, have invented a new and usefulMachine for Kneading and Washing Margarin or other Similar Substances;and I do hereby declare the following tobe a full, clear, and exactdescription of the same.

This invention relates to machines for kneading and washing butter,termed mechanical malaxating machines, and employed for treatingmargarine and other similar products.

The principal part of the invention is a mixing contrivance composed oftwo rotary cages or drums of similar construction arranged one withinthe other and rotating in opposite directions for the purpose ofobtaining a perfoot and consistent mixture in the form of an ingotwithout damaging the material. In order to secure this result, each ofthe cages or drums is composed of longitudinal bars or rods of ovalsection fixed at their ends to arms having the form of screw-blades. Theobject of these arms is to throw the material constantly toward themiddle of the vat which contains it in order that it may be thoroughlytriturated by the longitudinal bars.

In the accompanying drawings one form of the machine is illustrated byway of example.

Figure 1 is a transverse vertical section along the line A B in Fig. 2.Fig. 2 is a plan. Fig. 3 is a longitudinal elevation of the rotary cagesor drums. Fig. 4 is a transverse section along the line C D in Fig. 3;and Figs. 5 and 6, respectively, represent one of the screw bladecontrivances of the outside basket or drum and one of the inside basketsor drums in front View.

The same parts are numbered to correspond in all the figures of thedrawings.

The machine consists,substantially, of a air-' cular vessel 13, in whichtwo cages or drums l 3 and 2 4 rotate in opposite directions, the latterdrum being arranged inside the former. The outer drum (see Figs. 2 to 5)is formed of oval metal bars ,1, placed longitudinally and fixed attheir ends to the blades 3 of two screw blade contrivances, each withthree arms arranged at the ends of the vessel. The inside drum isconstructed in the same mannor as the foregoing; but the screw-blades 4,

which are arranged inside the screw-blades 3 and at a very slightdistance therefrom, are smaller than the latter, so as to be capable ofturning inside the bars 1 1. Further, two or three bars 1 2 may be fixedon each blade 4 of the screw blade contrivances. The blades or arms ofthe screw-blade contrivances 4 are inclined in a contrary direction tothe blades 3 in relation to the longitudinal axis of the machine, so asto produce the same effect as these latter, although turning in thecontrary direction.

The'hubs of the screw blade contrivances 3 3 are provided in front withtwo shaft ends running through the heads 17 17 and rotating in thebearings 6 6, arranged on the frame of the machine. (See Fig. 2.) Theseshafts carry the tooth-wheels 7 7, which are actuated by thecorresponding pinions 9 9, fixed on the parallel shaft 8, and thislatter is operated by means of the pulleys 1O 10 orin any other suitablemanner. The shaft of the right-hand screw-blade contrivance 3 ispartially perforated and that of the left-hand contrivance whollyperforated, so as to allow of the passage of the shaft 14, which carriesthe screw-blade contrivances 4 of the inside drum 2 4. The shaft 14 andthe drum 2 4 are rotated by means of the pulleys 15 or in any othersuitable manner.

On the shaft 8 a tooth-pinion 11 is arranged, which can be stopped orset in motion by means of the coupling-lever 12 and engages with a rackfixed on the outside of the vessel 13. When the treatment of thematerial is finished; the pinion 11 is rotated, and in acting on therack reverses the vessel 13, as shown in dotted lines in Fig. 1, so asto allow the material to be removed. In order to effect thisreversing'of the vessel 13, the latter is caused to turn on the bearings6 by means of the heads 17, fixed externally to the sides 10 of thevessel.

In certain cases, according to the quantity of material to be treated,one drum only may be employed for small machines,or,on the contrary,several screw-blade contrivances 4 may be arranged on the shaft 14 forlarge ma chines.

The rotation of the drums in this machine may be effected by means ofany suitable mechanical contrivance without thereby do parting from theprinciple of the invention. The special form of the drums and theirrotation in opposite directions enable a better mixed and moreconsistent material to be obtained than with other similar machines.Moreover, the material is not damaged and takes the form of aningot,which can be easily removed from the vessel by reversing thelatter. This new machine has also the advantage of not necessitating theemployment of counterweights and of including only one vessel, (vat ortank.)

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatWhat I claim is- The combination of a substantially cylindricalreceptacle having an opening in its side wall, a supporting-frame, saidreceptacle being arranged to turn in said frame, a shaft arrangedparallel with said receptacle, reversely-rotatable cages arranged insaid receptacle, means for rotating one of said cages, gearingconnecting said shaft with the other cage, and disconnective means forturning said receptacle in the frame, a portion of said means beingcarried by said shaft, substantially as described.

In testimony whereof I have signed this specification in the presence oftwo snbscrib- 3o ing witnesses.

LOUIS BAPTISTE DONKERS.

Witnesses:

FRANCIS E. VoUILLoN, H. CHRISTIAENSEN.

